var workingWin; 
function showWorking() { 
x = screen.availWidth / 2 - 200; 
y = screen.availHeight / 2 - 50; 
workingWin = window.open("uploading.html", "uploading", 
"left=" + x + ",top=" + y + 
",height=200,width=300,fullscreen=no,toolbar=no," + 
"status=no,menubar=no,scrollbars=no,resizable=no," + 
"directories=no,location=no"); 
} 
function clearWorking() { 
try { 
workingWin.close(); 
} catch (e) {} 
} 

function checkStart(){
 var form = document.forms["frm"];           //define form var
 var errorMsg = "";
 //var validRegExp = /^[^@]+@[^@]+.[a-z]{2,}$/i;
 var validRegExp = /^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;
 var strEmail = form.email.value;

 if(form.name.value.length < 2 || form.name.value=="")
   errorMsg += "-name\n";

 if(strEmail.search(validRegExp) == -1)
   errorMsg += "-email\n";

 if(form.phone.value.length < 7 || form.phone.value=="")
   errorMsg += "-phone\n"; 
        
 //check errorMsg
 if(errorMsg != ""){
   alert("You have forgotten to fill out these form entries: \n" + errorMsg + "\nThese are needed before you can submit this form.");
   return false;
 } else
return true;
}//end check valid entries